/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the aic-web-praise nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
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package com.sri.ai.lpitools.gwtgui.client.components.manager;

import java.util.ArrayList;
import java.util.List;

import com.sri.ai.lpitools.cobra.gwtutil.dataobjects.shared.ModelInfo;


/**
 * Class which holds the information of and distributes events for the active model
 * @author bellwein
 */
public class ModelManager {

	private ModelInfo activeModel;
	private List<ModelListener> modelListeners;
	private String currentText;
	private String currentTextFormated;
	
	public ModelManager() {
		this.modelListeners = new ArrayList<ModelListener>();
	}
	
	public void addModelListener(ModelListener addMe) {
		this.modelListeners.add(addMe);
	}
	
	public void removeModelListener(ModelListener removeMe) {
		this.modelListeners.remove(removeMe);
	}
	
	protected void notifyListenersActiveModelChanged(boolean getObjects) {
		ModelInfo model = getActiveModel();
		for (ModelListener listener : modelListeners) {
			listener.activeModelChanged(model, getObjects);
		}
	}
	
	public void setActiveModel(ModelInfo activeModel, boolean getObjects) {
		this.activeModel = activeModel;
		notifyListenersActiveModelChanged(getObjects);
	}
	
	public ModelInfo getActiveModel() {
		return activeModel;
	}
	
	/**
	 * Get the current text for the model (which may be different than in the model itself due to for example, editing by user
	 * @return
	 */
	public String getCurrentText() {
		return currentText;
	}
	
	/**
	 * Set the current text view, without updating the model's internal text.  This is useful for editing the model
	 * @param text
	 */
	public void setCurrentText(String text) {
		currentText = text;
	}

	public void setCurrentTextFormated(String text) {
		this.currentTextFormated = text;
	}

	public String getCurrentTextFormated() {
		return this.currentTextFormated;
	}

}
